"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> writes:
>>>> FOR var IN [array variable | array expression]
>>>> LOOP
> How about distinguishing it this way:?
> FOR var IN ARRAY array_expression LOOP
That occurred to me too, but it's got a small problem: it's not
impossible for ARRAY to be the first token of a valid scalar expression.
But I guess you could get around that if you had to by putting the ARRAY
expression inside parens, and it would be a pretty darn unusual case
anyway. So this is probably the best choice. I'm not thrilled with
David's suggestions of using FOREACH or ITERATE --- using a different
initial keyword makes it awkward to make generic statements about "all
types of FOR loop".
regards, tom lane